1. Scan for Formula Errors
Check for #REF!, #VALUE!, #DIV/0!, #N/A, and #NAME? errors. One visible error can make a whole workbook look unreliable. Use the Spreadsheet Auditor for a fast scan.
2. Check Hidden Sheets and External Links
Hidden sheets may contain backup calculations, confidential notes, or stale data. External links can break when the recipient opens the file on another computer.
3. Review Hardcoded Values
Hardcoded values inside formulas are not always wrong, but they should be intentional. If a tax rate, discount, or growth rate is embedded inside a formula, the recipient may not know where assumptions live.
4. Check Duplicates and Blank Rows
Duplicate records can inflate totals. Blank rows can break filters and imports. Use the duplicate finder and blank-row remover if the workbook contains exported data.
5. Reduce File Size if Needed
If the workbook is too large to email, reduce unused ranges, remove excess formatting, compress images, or use the Reduce Excel File Size tool.
Final Pre-Send Checklist
- Open the file from disk after saving.
- Run the formula audit.
- Confirm hidden sheets are safe to share.
- Check row counts after cleanup.
- Send a PDF copy if the recipient only needs to read the result.